Finding the Fourth Proportional to 111,942.60, 156,927 and 111,942.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,942.60 : 156,927 = 111,942.60 : x
2. Step 2: Convert to fraction form
   111,942.60/156,927 = 111,942.60/x
3. Step 3: Cross multiply
   111,942.60x = 156,927 × 111,942.60
4. Step 4: Simplify right side
   111,942.60x = 17,566,816,390.20
5. Step 5: Solve for x
   x = 17,566,816,390.20/111,942.60
6. Step 6: Final answer
   x = 156,927